Mars Xi can kill you with her mind, but she'll need more than psychic powers to save her in Killing Gravity, the thrilling science fiction space adventure debut by Corey J. White. Before she escaped in a bloody coup, MEPHISTO transformed Mariam Xi into a deadly voidwitch. Their training left her with terrifying capabilities, a fierce sense of independence, a deficit of trust, and an experimental pet named Seven. She's spent her life on the run, but the boogeymen from her past are catching up wit